cooling Acura MDX 2006 Owner's Manual

Your vehicle’s exhaust contains
carbon monoxide gas. You should
have no problem with carbon
monoxide entering the vehicle in
normal driving if you maintain your
vehicle properly.High levels of carbon monoxide can
collect rapidly in enclosed areas,
such as a garage. Do not run the
engine with the garage door closed.
Even with the door open, run the
engine only long enough to move the
vehicle out of the garage.With the tailgate open, air flow can
pull exhaust gas into your vehicle’s
interior and create a hazardous
condition. If you must drive with the
tailgate open, open all the windows
and set the heating and cooling
system/climate control system as
shown below.
If you must sit in your parked vehicle
with the engine running, even in an
unconf ined area, adjust the heating
and cooling system/climate control
system as f ollows:
Select the f resh air mode.
Select the mode.
Turn the f an on high speed.
Set the temperature control to a
comfortable setting.
The vehicle is raised f or an oil
change.
You notice a change in the sound
of the exhaust.
The vehicle was in an accident
that may have damaged the
underside.
Have the exhaust system inspected
f or leaks whenever:
1.
2.
3.
4.
Carbon Monoxide Hazard
54
Carbon monoxide gas is toxic.
Breathing it can cause
unconsciousness and even kill
you.
Avoid any enclosed areas or
activities that expose you to
carbon monoxide.

This meter shows the number of
miles (U.S.) or kilometers (Canada)
driven since you last reset it.This shows the temperature of the
engine’s coolant. During normal
operation, the pointer should rise to
about the middle of the gauge. In
severe driving conditions, the pointer
mayrisetotheupperwhitemark.If
it reaches the red (Hot) mark, pull
safely to the side of the road. Turn to
page f or instructions and
precautions on checking the engine’s
cooling system.
To reset a trip meter, display it, and
then press and hold the Reset button
until the number resets to ‘‘0.0’’.
Both trip meters will reset if the
vehicle’s battery goes dead or is
disconnected. There are two trip meters: Trip A
and Trip B. Switch between these
displays by pressing the Select
button repeatedly. Each trip meter
works independently, so you can
keep track of two dif f erent distances.
When you turn the ignition switch to
the ON (II) position, what you last
selected is displayed.
270
Gauges
Trip Meter Temperature Gauge
Inst rument s and Cont rols
69
SELECT BUTTON
RESET BUTTON

ÚÜ
Û
Ý
The climate control system f or your
vehicle can also be operated using
the voice control system. See the
Navi section in your Quick Start
Guide f or an overview of this system,
and the Navigation System manual
f or complete details.
When the indicator in the button is
on, air f rom the vehicle’s interior is
recirculated throughout the system.
When the indicator is off, air is
brought in f rom the outside of the
vehicle (Fresh Air mode).
The outside air intakes f or the
heating and cooling system are at
the base of the windshield. Keep this
area clear of leaves and other debris.
Thesystemshouldbeleftinfresh
air mode under almost all conditions.
Keeping the system in recirculation
mode, particularly with the A/C of f ,
can cause the windows to fog up.
Switch to recirculation mode when
driving through dusty or smoky
conditions, then return to fresh air
mode.
Push the button to increase the
temperature of air f low. Push the
button to decrease it. When you set
the temperature to its lower limit or
its upper limit, the system runs at f ull
cooling or heating only. It does not
regulate the interior temperature.
This button or icon turns the air
conditioningonandoff.Youwillsee
A/C ON or A/C OFF in the display.
This button turns the rear window
def ogger on and of f (see page ).
Push the button or icon to
increase the f an speed and air f low.
Push the button or icon to
decrease it.
77Only on models equipped withNavigation System
Airflow Buttons
Voice Control System Recirculation Button
Temperature Control Buttons
Air Conditioning (A/C) Button/
Icon
Rear Window Def ogger Button
Fan Speed Control Button/Icon
Features
107

The Automatic Climate Control
system can adjust the f an speed and
airflow levels to maintain the interior
temperature you select.Press the AUTO button.
Set the desired temperature with
the temperature control buttons.
You will see FULL AUTO in the
system’s display.
The system automatically selects the
proper mix of conditioned and/or
heated air that will, as quickly as
possible, raise or lower the interior
temperature f rom its current level to
the set temperature. In FULL AUTO
the rear A/C control panel cannot be
used. In cold weather, the f an will not
come on automatically until the
heater starts to develop warm air.
You can manually select various
f unctions of the Climate Control
system when it is in FULL AUTO.
All other f eatures remain
automatically controlled.
Manually selecting a f unction causes
thewordFULLinthedisplaytogo
out.
Press the OFF button. However, a
lack of airf low can cause the
windowstofogup.Youshouldkeep
the fan on at all times so stale air and
moisture do not build up in the
interior and cause fogging.
If you set the temperature to its
lower or its upper limit, the system
runs at f ull cooling or heating only. It
does not regulate the interior
temperature.
Select . The system
automatically switches to Fresh
Air mode and turns on the A/C.
The A/C indicator will not come
on in U.S. vehicles, if the A/C was
off to start with.
Select .
Set the f an and temperature
controls to maximum level.
For your saf ety, make sure you have
a clear view through all the windows
bef ore driving. To clear the windshield f aster, you
can close the dashboard corner vents
by rotating the wheel below each
vent. This sends more warm air to
the windshield def roster vents. Once
the windshield is clear, select Fresh
Air mode to avoid f ogging the
windows. 1.
2.
1.
2.
3.
Vents, Heating, and A/C
T o Remove Exterior Frost or Ice
From the Windows
Manual Operation
To Turn Everything Off
Using A utomatic Climate Control
110

CONT INUED
Trailer lights and equipment must
comply with f ederal, state, province,
and local regulations. Check trailer
light requirements f or the areas
where you plan to tow, and use only
equipment designed f or your vehicle.
To get to your vehicle’s trailer
lighting connector, open the tailgate,
remove the cargo cover, then
remove the rear panel trim. The
connector is on the lef t side.We recommend that you have your
dealer install a Acura wiring harness
and converter. This harness has
been designed f or your vehicle.
If you use a non-Acura trailer
lighting harness and converter, you
cangetthematingconnectorand
pins that mate with the connector in
your vehicle f rom your dealer.
When preparing to tow, and bef ore
driving away, be sure to check the
f ollowing:
The vehicle has been properly
serviced, and the tires, brakes,
suspension, cooling system, and
lights are in good operating
condition. If you tow f requently,
f ollow the severe conditions
maintenance schedule.
The trailer has been properly
serviced and is in good condition.
All weights and loads are within
limits.
Allitemsonandinthetrailerare
properly secured and cannot shif t
while you drive.
Since lighting and wiring vary with
trailer type and brand, you should
also have a qualif ied mechanic install
a suitable connector between the
vehicleandthetrailer.
Thehitch,safetychains,andany
other attachments are secure.
Towing a Trailer
T railer L ights Pre-T ow Checklist
Driving
221
GROUND
(BLACK)
RIGHT TURN
SIGNAL
(GREEN/
YELLOW) TAILLIGHT
(RED/
BLACK)
BRAKE
LIGHT
(WHITE/
BLACK) LEFT TURN
SIGNAL
(GREEN/
BLUE)
BATTERY
POWER
(WHITE)

If the coolant level in the reserve
tank is at or below the MIN line, add
coolant to bring it up to between the
MIN and MAX lines. Inspect the
cooling system f or leaks.If the reserve tank is completely
empty, you should also check the
coolant level in the radiator.
Always use Acura Precision Craf ted
All Season Antif reeze/Coolant Type
2. This coolant is pre-mixed with 50
percent antif reeze and 50 percent
water. Never add straight antif reeze
or plain water.
If Acura antif reeze/coolant is not
available, you may use another
major-brand non-silicate coolant as a
temporaryreplacement.Makesureit
is a high-quality coolant
recommended f or aluminum engines.
Continued use of any non-Acura
coolant can result in corrosion,
causing the cooling system to
malf unction or f ail. Have the cooling
system f lushed and ref illed with
Acura antif reeze/coolant as soon as
possible.
Engine Coolant
A dding Engine Coolant
240
RESERVE TANK
Removing the radiator cap
while the engine is hot can
cause the coolant to spray out,
seriously scalding you.
Always let the engine and
radiator cool down before
removing the radiator cap.

Make sure the engine and radiator
are cool.
When the radiator and engine are
cool, relieve any pressure in the
cooling system by turning the
radiator cap counterclockwise,
without pressing down.
Remove the radiator cap by
pushing down and turning
counterclockwise.The coolant level should be up to
the base of the f iller neck. Add
coolant if it is low.
Pourthecoolantslowlyand
caref ully so you do not spill any.
Clean up any spill immediately; it
could damage components in the
engine compartment.
Put the radiator cap back on, and
tighten it fully.
Pour coolant into the reserve tank.
Fill it to half way between the MAX
and MIN marks. Put the cap back
on the reserve tank.
Do not add any rust inhibitors or
other additives to your vehicle’s
cooling system. They may not be
compatible with the coolant or
engine components. Check the f luid level in the
windshield washer reservoir at least
monthly during normal use.
The washer level indicator will come
on when the level is low (see page
).
Fill the reservoir with a good-quality
windshield washer f luid. This
increases the cleaning capability and
prevents f reezing in cold weather.
When you ref ill the reservoir, clean
the edges of the windshield wiper
blades with windshield washer f luid
on a clean cloth. This will help to
condition them.
3.
4.
5.
1.
2. 63
Engine Coolant, Windshield Washers
Windshield Washers
Maint enance
241
Do not use engine antif reeze or a
vinegar/water solution in the
windshield washer reservoir. Antif reeze
can damage your vehicle’s paint, while
a vinegar/water solution can damage
the windshield washer pump. Use only
commercially-available windshield
washer f luid.

Remove the light assembly cover
by prying caref ully with a cloth-
covered screwdriver in the
notches along the top edge. Then
pivot the cover out and down.
Remove the socket f rom the light
assembly by turning it one-quarter
turn counterclockwise.Pull the bulb straight out of its
socket. Push the new bulb straight
into the socket until it bottoms.
Testthelightstomakesurethe
new bulb is working.
Put the socket back into the light
assembly, and turn it clockwise to
lock it in place.
Place the cover back into the light
assembly. Push it up until it locks
in place.
This f ilter removes the dust and
pollenthatisbroughtinfromthe
outside through the heating and
cooling system.
Have your dealer replace this filter
every 30,000 miles (48,000 km)
under normal conditions. It should
be replaced every 15,000 miles
(24,000 km) if you drive primarily in
urban areas that have high
concentrations of soot in the air, or if
the airflow from the heating and
cooling system is less than usual.
1. 4.
5.
6.
2. 3.
Replacing a High-mount Brake
Light Bulb Dust and Pollen Filter
Lights, Dust and Pollen Filter
248

If you need to park your vehicle f or
an extended period (more than 1
month), there are several things you
should do to prepare it f or storage.
Proper preparation helps prevent
deterioration and makes it easier to
get your vehicle back on the road. If
possible, store your vehicle indoors.Fill the f uel tank.
Change the engine oil and f ilter.
Wash and dry the exterior
completely.
Cleantheinterior.Makesurethe
carpeting, floor mats, etc., are
completely dry.
Leave the parking brake off. Put
the transmission in Park. Block the rear wheels.
If the vehicle is to be stored f or a
longer period, it should be
supported on jackstands so the
tires are of f the ground.
Leave one window open slightly (if
the vehicle is being stored
indoors).
Disconnect the battery.
Support the f ront and rear wiper
blade arms with a f olded towel or
ragsotheydonottouchthe
windshield.
To minimize sticking, apply a
silicone spray lubricant to all door
and tailgate seals. Also, apply a
vehiclebodywaxtothepainted
surfaces that mate with the door
and tailgate seals.Cover the vehicle with a
‘‘breathable’’ cover, one made
f rom a porous material such as
cotton. Non-porous materials, such
as plastic sheeting, trap moisture,
which can damage the paint.
If possible, periodically run the
engine until it reaches f ull
operating temperature (the
cooling f ans cycle on and of f
twice). Pref erably, do this once a
month.
If you store your vehicle f or 12
months or longer, have your dealer
perf orm the inspections called f or in
the 24 months/30,000 miles
(48,000 km) maintenance schedule
(Normal Conditions) as soon as you
take it out of storage (see page ).
The replacements called f or in the
maintenance schedule are not
needed unless the vehicle has
actually reached that time or mileage. 231
Vehicle Storage
258

If the temperature gauge stays at
the red mark, turn of f the engine.
Look f or any obvious coolant leaks,
such as a split radiator hose.
Everything is still extremely hot,
so use caution. If you f ind a leak, it
must be repaired bef ore you
continue driving (seeon page ). Start the engine and set the
temperature control dial to
maximum (climate control to
FULL AUTO at 90°F/32°C). Add
coolant to the radiator up to the
base of the f iller neck. If you do
not have the proper coolant
mixture available, you can add
plain water. Remember to have
the cooling system drained and
ref illed with the proper mixture as
soon as you can.
Put the radiator cap back on
tightly. Run the engine, and watch
the temperature gauge. If it goes
back to the red mark, the engine
needs repair (see
on page ).
If the temperature stays normal,
check the coolant level in the
radiator reserve tank. If it has
gone down, add coolant to the
MAX mark. Put the cap back on
tightly.
If you do not f ind an obvious leak,
check the coolant level in the
radiator reserve tank. Add coolant
if the level is below the MIN mark.
If there was no coolant in the
reserve tank, you may need to add
coolant to the radiator. Let the
engine cool down until the pointer
reaches the middle of the tempera-
ture gauge, or lower, bef ore check-
ing the radiator.
Using gloves or a large heavy
cloth, turn the radiator cap
counterclockwise, without pushing
down, to the f irst stop. Af ter the
pressure releases, push down on
the cap, and turn it until it comes
off.
4.
5.
6.
7. 8.
10.
11.9.
275 275
If theEngineOverheats
Emergency
Towing
Emergency
Towing
T aking Care of t he Unexpect ed
271
Removing the radiator cap
while the engine is hot can
cause the coolant to spray out,
seriously scalding you.
Always let the engine and
radiator cool down before
removing the radiator cap.